<nav class="navbar navbar-inverse">
    <div class="container-fluid">
        <!-- Brand and toggle get grouped for better mobile display-->
        <div class="navbar-header">
            <button type="button" class="navbar-toggle collapsed" data-toggle="collapse"
                    data-target="#bs-example-navbar-collapse-1" aria-expanded="false">
                <span class="sr-only">Toggle navigation</span>
                <span class="icon-bar"></span>
                <span class="icon-bar"></span>
                <span class="icon-bar"></span>
            </button>
            <a class="navbar-brand" href="/app01/book_list/">首页</a></div>

        <!-- Collect the nav links, forms, and other content for toggling -->
        <div class="collapse navbar-collapse" id="bs-example-navbar-collapse-1">
            <ul class="nav navbar-nav">
            <li class="active"><a href="/app01/booklist/">图书列表<span class="sr-only">(current)</span></a></li>
            <li class="active"><a href="/app01/authorlist/">作者列表</a></li>
            <li class="active"><a href="/app01/publisherlist/">出版社列表</a></li>
            <ul class="dropdown-menu">
                <li><a href="#">Action</a></li>
                <li><a href="#">Another action</a></li>
                <li><a href="#">Something else here</a></li>
                <li role="separator" class="divider"></li>
                <li><a href="#">Separated 1ink</a></li>
                <li role="separator" class="divider"></li>
                <li><a href="#">One more separated link</a></li>
            </ul>
            </li>
            </ul>

        <form class="navbar-form navbar-left">
            <div class="form-group">
                <input type="text" class="form-control" placeholder="Search">
            </div>
            <button type="#" class="btn btn-default">Submit</button>
        </form>
        <ul class="nav navbar-nav navbar-right">
            <li><a href="#">Link</a></li>
            <li class="dropdown">
                <a href="#" class="dropdown-toggle" data-toggle="dropdown" role="button" aria-haspopup="true"
                   aria-expanded="false">Dropdown
                    <span class="caret"></span></a>
                <ul class="dropdown-menu">
                    <li><a href="#">Action</a></li>
                    <li><a href="#">Another action</a></li>
                    <li><a href="#">Something else here</a></li>
                    <li role="separator" class="divider"></li>
                    <li><a href="#">Separated link</a></li>
                </ul>
            </li>
        </ul>
    </div><!--/.navbar-collapse--></div><!--/.container-fluid-->
</nav>